The table shows the postage rates for posting mail locally and overseas.
Mass |
Local Postage |
Overseas Postage |
First 60 g |
35¢ |
85¢ |
Every additional 10 g |
15¢ |
40¢ |
Ryan paid $2.25 for posting a package locally. What was the greatest possible mass of the package that Ryan posted?
$1 = 100¢
$2.25 = 2.25 x 100 = 225¢
Amount that Ryan paid for the additional sets of 10 g for the local package
= 225 - 35
= 190¢
Number of sets of 10 g that Ryan paid for the local package
= 190 ÷ 10
= 19
Mass of 19 sets of 10 g for the local package
= 19 x 10
= 190 g
Greatest possible mass of the local package
= 60 + 190
= 250 g
Answer(s): 250 g